Small Safety Limit Switch [D4F]
Caution
- The product images are representative only. Specifications may vary by part number, including shape and color.
Product Description
[Features]
· Limit switch with direct opening mechanism (4 contacts).
· Safety limit switch with high sensitivity.
· Built-in switch is available with 2 contacts or 4 contacts.
Drawing
*The dimensional tolerance for the parts not specified in the drawings of each model above is +/- 0.4 mm.
Product Specification
Performance
| Protective structure*1 | IP67 (EN60947-5-1) | |
|---|---|---|
| Durability*2 | Mechanical | More than 10 million times |
| Electrical | More than 1,000,000 times (4 mA/24 V DC x 4 circuits, resistive load) More than 150,000 times (1 A/125 V AC x 2 circuits, 4 mA/24 V DC x 2 circuits, resistive load) *3 | |
| Allowable operation speed | 1 mm to 0.5 m/s | |
| Allowable operation frequency | Mechanical | 120 times/min |
| Electrical | 30 times/min | |
| Contact resistance*5 | 300 mΩ max (with 1 m cable), 500 mΩ max (with 3 m cable), 700 mΩ max (with 5 m cable) | |
| Minimum applicable load*4 | 24 V DC 4 mA resistive load, 4 circuits (N level, reference value) | |
| Rated insulation voltage (Ui) | 250V | |
| Rated frequency | 50/60 Hz | |
| Appliance Class | Class I (with earth wire) | |
| Pollution degree (operating environment) | Pollution degree 3 (EN60947-5-1) | |
| Impulse withstand voltage (EN60947-5-1) | Between terminals of the same polarity | 2.5 kV |
| Between different pole terminals | 4 kV | |
| Between each terminal and earth | 4 kV | |
| Insulation resistance | Between same-pole and different-pole terminals, between current-carrying metal parts and earth, between each terminal and non-current-carrying metal parts: 100 MΩ or more (with 500 V DC megger) | |
| Contact gap | Minimum 2 x 2 mm | |
| Vibration | Malfunction | 10 to 55 Hz, Half amplitude 0.75 mm |
| Impact | Endurance | 1,000 m/s2 or more |
| Malfunction | 300 m/s2 or more | |
| Conditional short circuit current | 100 A (EN60947-5-1) | |
| Rated thermal current [Ith] | 2.5 A (EN60947-5-1) | |
| Operating ambient temperature | -30 to +70°C (no freezing) | |
| Operating ambient humidity | 95% RH or less | |
| Cable | UL Style 2464 AWG22 finish outer diameter 8.3 mm | |
| Weight | approx. 190 g (with 1 m cable, model D4F-102-1R) approx. 220 g (with 1 m cable, model D4F-120-1R) | |
*1. The values given above are initial values.
2. Once a load has been switched by the contact, do not use it with a load of lower capacity connected. The contact surface may become rough, which could compromise contact reliability.
*1. This protective structure is based on test methods according to the standard (EN60947-5-1). Please confirm the sealing performance in advance under actual operating environment and usage conditions.
*2. The durability conditions are based on an ambient temperature of 5 to 35°C and an ambient humidity of 40 to 70% RH.
*3. Do not apply 1 A/125 V AC to more than two circuits.
*4. This value may vary depending on switching frequency, environmental conditions, and reliability level. Please check with the actual load in advance.
*5. Measurement Condition: 5 to 8 V DC, 0.1 A, depending on the voltage descent method.